vendor/github.com/googleapis/gnostic/generate-gnostic/test/x-extension-name-collision.json

        {
            "definitions": {
                "SampleCompanyOnePrimitiveString": {
                    "type": "string",
                    "id": "x-samplecompanyone-mystr"
                },
              "SampleCompanyTwoPrimitiveString": {
                "type": "string",
                "id": "x-samplecompanyone-mystr"
              }
            }
        }